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djyliett [7]
3 years ago
13

Martha tries to exercise at least 30 minutes eac day write an inequality to represent the number of minutes Martha exercises eac

h day
Mathematics
1 answer:
Sergio [31]3 years ago
4 0
Let “t” represent the number of minutes Martha exercises each day. If she needs to exercise *at least* 30 minutes, t has to be equal to or greater than 30, so our inequality would be

t ≥ 30
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yKpoI14uk [10]

Answer

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6 0
3 years ago
You want to put $2,500 in a simple interest account. It has a 4% annual interest rate. How long will it take you to earn $200 in
Nadya [2.5K]
The formula is
I=prt
I interest earned 200
P principle 2500
R interest rate 0.04
T time ?
We need to solve for t
T=I÷pr
T=200÷(2,500×0.04)
T=2years

Hope it helps
6 0
3 years ago
Which expression is equivalent to 2(a+2b)-a-2b<br> o 3a+2b<br> o 3a-2b<br> o a-2b
lys-0071 [83]

Answer:

a -2b

Step-by-step explanation:

2(a+2b)-a-2b

Distribute

2a+4b -a-2b

Combine like terms

a -2b

8 0
3 years ago
Evaluate:-|137|+|13|​
pychu [463]

Answer:

The answer is 150

Step-by-step explanation:

I think what you mean with the numbers between the "I's" is <em>absolute value</em>. Any number is just that number, so the <em>absolute value </em>of -6, is 6. The absolute value of 24 is 24. That means it's simply 137+13, which is <u>150</u>.

5 0
3 years ago
Right triangle ABC has three sides with lengths AB= 119, BC = 169, CA= 120. Find the value of cos C. hint: draw and label the tr
GenaCL600 [577]

Answer:

\cos(C)=\frac{120}{169}

Step-by-step explanation:

The triangle is shown in the attachment.

Recall that;

\cos(C)=\frac{Adjacent}{Hypotenuse}

This implies that;

\cos(C)=\frac{|AC|}{|BC|}

We substitute the values into the ratio to obtain

\cos(C)=\frac{120}{169}


8 0
3 years ago
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